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Author Question: Early in the twentieth century, what was the prevailing view of how land animals migrated across ... (Read 114 times)

809779

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on: Jul 14, 2018
Early in the twentieth century, what was the prevailing view of how land animals migrated across vast expanses of open ocean?
 
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Question 2

Explain why the discovery of the fossil remains of Mesosaurus in both South America and Africa, but nowhere else, supports the continental drift hypothesis.
 
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rekilledagain

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Early views were far-fetched ideas about rafting, land bridges, and island stepping-stones to get from one continent, across an ocean, and onto another continent.

Answer to Question 2

Mesosaurus was a freshwater reptile, and migration between the continents as they are now would have been impossible; however, if they were connected (as in Pangea), then this animal could have easily moved between the two by freshwater river systems.


809779

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Reply #2 on: Jul 14, 2018
Thank you :)


rekilledagain

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Reply #3 on: Jul 14, 2018
Happy to help you


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